8 x 2.5'' front drives (one processor)
Use the section to understand the cable routing for signal cable connections for 8 x 2.5'' front drive 
backplanes when one processor installed.
8 x 2.5'' SAS/SATA backplane (one processor)
Use this section to understand the SAS/SATA backplane cable routing for server model with eight 2.5-inch 
front drives.
To connect power cables for a backplane for standard 2.5-inch or 3.5-inch drives, refer to 
“Cable routing for 
backplane power” on page 165
.
To connect cables for M.2 drives, refer to “M.2 drive backplane” on page 164.
To connect intrusion switch cable, refer to 
“Intrusion switch” on page 161. 
To connect power cable for CFF RAID adapter, refer to 
“CFF RAID adapter” on page 159. 
To connect signal cables for a backplane for standard 8 x 2.5-inch front drives, refer to the following cable 
routing scenarios depending on your server configuration: 
• 
“Cable routing with an SFF HBA/RAID adapter” on page 169
•  “Cable routing with a CFF RAID adapter” on page 170
Cable routing with an SFF HBA/RAID adapter
The following illustrations and tables show the mapping relationship between backplane connectors and an 
8i or 16i SFF HBA/RAID adapter (Gen 3 or Gen 4).
Chapter 6. Internal cable routing 169